Grill brush



FIG. 1 is a front elevational view of a grill brush in accordance withthe present design, the rear elevational view being a mirror imagethereof;

FIG. 2 is a side elevational view thereof, the opposite side being amirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating aportion of the grill brush that forms no part of the claimed design.

CLAIM The ornamental design for a grill brush, as shown and described.